image SERGEANT V3 Aluminum image MIDDLECHILD Titanium

MIDDLECHILD Chromoly 2019

MIDDLECHILD Chromoly 2019

There’s one in every family. That one that feels excluded from the bunch. If you’re down with that attitude because you like to go your own way, then we’d like to introduce you to the rowdiest member of the RSD family – the MiddleChild.

Some of our bikes are great at getting the job done – real authorities. The 29/27.5+ MiddleChild gets it done, but the only thing on the agenda is playtime. Every detail on this premium-quality handmade steel frame screams “skip work and let’s party!”

  • double-butted, heat-treated 4130 Chromoly steel tubing
  • full CNC-machined custom yoke that’ll take 2.8″ tires (or up to 2.6″ x 29)
  • 64.5 degree head tube and 74 degree seat tube angles paired with 140mm fork –  that aggressive geometry for both climbing and sending choice descent lines
  • boost spacing and short chainstays (adjustable from 415mm – 430mm) for super stability and loads of confidence in the rough stuff

The MiddleChild is a purely new-school ‘Enduro’ hardtail…

…that will never get left behind.

(All MiddleChild Frames come with INTERNAL DROPPER ROUTING – Not as Shown)

Buy Now

  • Build Kit
  • Specs & Geometry
  • Frame: 27.5+/29 Cr-Mo 4130 Double Butted and Heat Treated
  • Fork: Pike RC 27.5+/29 Boost with 140mm Travel
  • Headset: Cane Creek ZS-44
  • Handle Bar: Race Face 35mm Turbine R 780mm
  • Stem: Race Face 35mm Turbine 50mm
  • Grips: Lizard Skin Northshore
  • Front Wheel: Sun Ringle Duroc 27.5x50mm Front 15x110mm Boost
  • Rear Wheel: Sun Ringle Duroc 27.5x50mm Rear 12x148mm Boost
  • Crank: Race Face 175mm Turbine Cinch DM
  • Chain Ring: Race Face 30T NW Ring
  • BB: Race Face 73mm BSA
  • Chain: KMC X11SL
  • Cassette: Shimano XT 11/46T 11spd
  • Rear Shifter: Shimano XT 11spd
  • Rear Derailleur: Shimano XT 11spd
  • Brakes: Shimano XT 4 Pistons
  • Rotors: Shimano SLX
  • Saddle: WTB Koda 142mm Comp
  • Seat Post: Race Face Turbine / KS Lev Integra Dropper
  • Rear Axle: SRAM Rear Maxle Ultimate 12x148mm
  • Tires: Maxxis Minion DHF 2.8 and DHR II 2.8 3C Maxx Terra EXO TR

Frame Weight with Sliding Inserts and Hardware
(M): 6 Lbs 10 oz
(L): 6 Lbs 14 oz

Complete Bike Weight 
(M): 30 Lbs 6 oz with Dropper and set-up Tubeless
(M): 29 Lbs 12 oz with Turbine Seat Post and set-up Tubeless

Sizes: Sm, Med, Lrg & Xlrg

Finish: Yellow, Turquoise, Matte Black

Complete: $2999.00 CAD / $2599.00 USD
Complete w/Dropper : $3249.00 CAD / $2799.00 USD
Frame Only: $799.00 CAD / $699.00 USD

Included with the Frame Only option:
Cane Creek ZS-44 Headset for tapered steer tube
Rear 12x148mm Sliding Drop-out Inserts
SRAM Rear Maxle Lite 12x148mm
Seat post clamp

All prices listed are Minimum Suggested Retail

Frame Specs

  • Handmade Frame: 27.5+/29 Double Butted Chromoly 4130 Heat Treated
  • CNC Machined Custom Yoke: Chromoly 4130
  • CNC Machined Drop-Out: Chromoly 4130
  • CNC Machined Head Tube: 44mm
  • CNC Machined Bottom Bracket Shell: 73mm BSA
  • CNC Machined Sliding Inserts: 7000 Series Aluminum – 12mm Maxle and IS Disc Mount
  • Dropper Post Routing: Internal
  • Hardware: Stainless Steel
  • Fork Length: 550mm (140mm)
  • Rear Spacing: 148mm
  • Seat Post Clamp: 34.9mm
  • Seat Post: 30.9mm
  • Max Tire Size: 27.5×2.8in or 29×2.6in – Optimized for 2.8in tires, some 3.0 tire/rim combinations may have enough clearance. Rider discretion is advised
  • Max Fork Length: 560mm Axle to Crown (150mm Travel)
  • Max Dropper Post Insertion Length: Small 220mm, Medium 260mm, Large 280mm, XL 300mm
  • Torques Specs for 4 Drop-Out Bolts: 7N/M

Size Chart
Geometry — Metric
Geometry — Imperial

Buy Now